ES2776140T3 - Multi-position textile machine, especially twist or double yarn spinning machines - Google Patents

Abstract

Multi-position textile machine, comprising one or more double spindle units (1), wherein the double spindle unit (1) has a frame, which supports working and transport elements, which contains a reel transport facility (31, 33), where the rear sides of the two working positions (1 ', 1' ') of the double spindle unit (1), which respectively present a coil installation (3), are directed between them, and the multi-position textile machine comprises legs (26), characterized in that the double spindle unit (1) has a support (2) arranged in the center, because the support (2) has a cross member (20 ) that extends from one to the other workstation of the double spindle unit (1), which is supported by means of legs (26), which are adjustable legs (26) on the ground, because the support (2 ) also has a hollow profile (21) arranged in the center, which extends vertically from the cross member (20) and because the hollow profile (21) is configured at least for housing a coil transport installation (31, 33) as well as for fixing a coil installation (3).

Description

DESCRIPTION

Multi position textile machine, especially twisting or double yarn spinning machines

The invention relates to a multi-position textile machine, especially a twisting or double-yarn spinning machine, comprising one or more twin-spindle units, respectively having a frame, which supports the working elements and transport and where the rear sides of the two workstations of the twin screw unit are directed towards each other.

Conventional machines of the type mentioned in the title, which have been used up to now almost 100%, are generally multi-position machines. One work station is arranged next to the other, the yarn supply workshops and the winding plants are driven by continuous shafts, which run longitudinally through the machine, which are centrally driven by electric motors central operated on the front side.

The spindles are generally driven by means of belts or belts or, in the case of machines of a new type of construction, they are also moved in rotation by individual motors that sit below or next to the spindles. In both cases, the drive or the supply and control are carried out centrally and collectively in the same way for all spindles.

The frames of the machine are made in the usual type of construction in bilateral sections, containing, respectively, between 8 and 16 spindles approximately and have been sent to the customer fully assembled fully functional. There they are assembled with a central control and drive unit into complete machines up to approximately 40 meters long, not rarely with more than 200 workstations. Through these concepts and the high number of centrally supplied spindles it has been possible to achieve that all manufacturing, transport and assembly costs can be distributed very favorably on the individual workstations. Therefore, this represents a generally very economical solution. However, machines of this type of construction are only suitable for the rational production of serial products. In contrast, the flexibility required for smaller parts is not guaranteed. Only with high cost of retrofitting or with partially unloaded, that is, relatively expensive machines, can tasks requiring high flexibility be carried out.

Another drawback of centrally driven machines can be seen in that the effect of using the machines in the event of machine breakdowns is drastically reduced, because when the machines are stopped, a plurality of spindles are immediately affected. Every machine breakdown is therefore a relatively expensive event. For example, for a double-wire machine, which exhibits the mentioned properties, reference is made to DE 29 25 668 A1. There each so-called field, which is constituted by a plurality of workstations, is arranged between vertical supports of the machines and forms a section.

Starting from here, there was always the requirement for more flexible machines. However, this generally suffers from comparatively higher costs for manufacturing the machines.

A possibility to achieve more flexibility is published, for example, in EP 1737 775 A1. The solution described there still has, in principle, the structure of a conventional multi-position machine, but with the individual spindles / workstations they are now associated, instead of central drives, individual drives and individual controls. In this way it is achieved that each workstation can be operated almost autarkically. But this solution clearly remains the disadvantage of maintaining the central structure of the machine. That is, for the user, despite the higher costs with respect to the number of screws available, there is only limited flexibility. In document EP 1 737 775 A1 there are still pending proposals for solutions for the transport of the coils or for the suction of heat.

Another step in the direction of unlimited flexibility is documented through EP 1357208 A1. Here we describe a single, self-sufficient workstation of a double wire twisting machine with precision output. Several of these units may still be linked together in a kind of multi-position machine, but each position is fully autarkic and is operated separately from the others. Here too, any possibility of obtaining the finished coils on a corresponding transport installation is lacking. Only a one-sided machine is depicted and described here, in which, however, a discretionary arrangement of the individual spindle units remains pending including also a totally separate positioning.

In order to reduce the high costs for compulsory air conditioning in textile workshops, conventional machines are, moreover, often configured in such a way that the machine frame forms a channel system towards the center of the machine, through the which customer air can be sucked in, before it is charged room. Such a possibility is neither envisaged nor conceivable in the design in the proposed solution according to EP 1 357 208 A1. An independent, autonomous machine frame for each position necessarily leads to higher manufacturing costs. The stability of the single spindle unit is limited by its base surface. Therefore, it is necessary to take additional measures for raising the stability, the aforementioned document teaching to connect individual screw units to each other.

It is further known from EP 0 384 092 B1 to produce twin screw units instead of single screws. These twin screw units have the advantage of greater stability and contain a transport system for the reels to be handled. The described twin screw units are seated on a base frame, which has six spaced vertical tie rods which, for their part, are connected above and below by transverse supports. In this complex chassis, made up of several frames arranged in space, the work elements of the two workstations are then fixed. The expensive construction of the frame allows only, as in conventional multi-station textile machines, an extremely limited variation of the dimensions of the work elements. Therefore, an object of the present invention is to propose a multi-station textile machine guaranteeing high flexibility, which is simply constructed.

Document DE 10 2007 043 352 A1 discloses a double yarn twisting or spinning machine, comprising a plurality of double workstations. Furthermore, from the figures it can be deduced that a coil transport installation is present, as well as legs, with which the machine rests on the ground.

The invention is based on a multi-position textile machine, comprising one or more double spindle units, respectively having a frame, which carries the work and transport elements and in which the rear sides of the two workstations work of the twin spindle unit are directed towards each other. According to the invention, the respective twin screw unit has a centrally arranged support. The support has a crossbar, which extends from one to the other workstation of the twin screw unit, which is supported by means of adjustable feet on the ground. The support also has a hollow profile arranged in the center, which extends vertically from the cross member and is configured to house a coil transport installation as well as to fix a coil installation.

The centrally arranged support, which forms the support construction for both opposing workstations, is simple constituted and allows the attachment of components and construction groups of the two workstations, for which there are almost no limitations with respect to its sizing. The structure and use of a hollow profile results, despite the adapted bearing capacity, in a reduced weight of the construction. For different dimensioned workstations, the same support construction can be used. This results in minimal component variation or cost savings through multiple use of certain components. In front of the individual reel stations, the coupling of opposing work units is suppressed. Due to the special design of the hollow profile, it serves at the same time to accommodate a coil transport system, which relieves personnel especially in the case of relatively heavier double coil production and can be installed without considerable additional expense .

The invention has been developed through claims 2 to 13.

As described in claim 2, the cross member has, in an advantageous embodiment, at least one hole, in which a suction device can be connected. In other words, by configuring the vertical part of the support as a hollow profile with at least one hole, the possibility of equipping the multi-position textile machine with a suction device, if necessary, results in a simple way. With such a suction system, the hot air generated during production in the workplace area can be sucked in without any problems, which has a positive effect on the customer's respective work room with regard to the air conditioning of the space.

The configuration of the coil installation as a coil module according to claim 3 has the advantage of a quick assembly, including the replacement of the coil module by an alternative coil module, which can generate another type of winding or also another dimension of the coil. output coil. This therefore raises the existing flexibility of the multi-station textile machine anyway.

The advantageous embodiment described in claim 4 of the housing of a coil module has the advantage that, through the aligned arrangement of air passage openings made in the hollow section and in the spindle module, a effective heat extraction. In other words, the location of the heat generation can be effectively refined through the hollow profile.

The provision of a separate suction system for each workstation guarantees a further increase in flexibility towards a fully autonomous workstation.

A particularly simple solution represents the integration of the control unit in the coil module (claim 6). For example, the need for a data transmission to the coil module is eliminated. In this case, the control unit preferably has a control unit (claim 7), which enables rapid entry or modification, for example, of double parameters or work programs.

Although the multi-station textile machine according to the invention is made up of single units of double spindles, it is obviously possible to communicate via an interface with a central control unit (claim 8). The central control unit can transmit data related to the spindle as reference value and work programs via this interface. The adjustment via the operator is done here at a central station.

The decoupling of other workstations is supported by separate drives of the work elements of the respective twin spindle units (claim 9).

If the twin screw units, as described in claim 10, each have separate driveable transport modules which form a transport section of the coil transport unit, the limits for different transport directions can be varied as desired. for the output coils generated. In the case of a common reel conveying facility for several twin screw units (claim 11), the limits for the conveying direction are fixed, but a common conveying facility is less expensive. However, by modifying the transport direction, there is also the possibility here to implement various transport variants and thus implement an additional sorting function.

If central supply elements for power or also for driving the twin-screw units are present, they should have elastic properties, thereby largely suppressing a transmission of oscillations between the twin-screw units. Separate connecting elements between the twin screw units are also conceivable, as shown in claim 12, which should then however also have elastic properties.

It can be recognized without more than in a dimensioning of work elements or modules, which protrude by a certain measure, this fact can be taken into account in the sense that neighboring twin-screw units are spaced apart. In principle, it is always possible to replace double screw units as well, to change the number of double screw units, which form the textile maximum of several stations, or to adapt to spatial characteristics.

The invention is explained in detail below with the aid of exemplary embodiments represented in the drawings.

Figure 1 shows a perspective view of a twin screw unit according to the invention.

Figure 2 shows a support of a twin screw unit according to the invention in perspective view.

Figure 3 shows a coil module in perspective view.

Figure 4 shows a twin screw unit according to the invention, partially assembled.

Figure 5 shows the housing of a spindle unit.

Figure 6 shows a perspective view of a multi-position textile machine, and

Figure 7 shows another perspective view of a multi-position textile machine.

The twin-spindle unit 1 represented in figure 1 has a support 2, which is arranged in the center and contains all the work elements of the work stations 1 ', 1' 'directed towards each other with their rear sides as well as a transport module 17. In the two workstations 1 'and 1' ', the exemplary embodiment deals with double double wire installations.

The support 2 represented in detail in figure 2 has a cross member 20, which is supported by means of adjustable legs 26 on the ground. For further stabilization, especially when such a twin screw unit stands alone, four legs 26 must be used or the legs must have larger bearing surfaces. In any case, it is necessary to ensure a dimensioning such that a sufficient stability of the twin screw unit is guaranteed. A hollow profile 21 extends vertically from the cross member 20, having at its upper end mounting shelves 24 for coil modules 3 as well as a housing 25 for a transport module 17. The holes 22 in the cross member 20 serve for housing of individual drives of the spindle module 4.

Furthermore, the hollow profile 21 can be provided with a hole not shown, which is aligned with a corresponding hole in the cross member 20. Through such a configuration it is possible to connect a suction installation for the transport of the heat produced during twist of the thread. In order to be able to draw in the hot air as close as possible to the production site, the hollow profile 21 can also have cooling holes 23, which are aligned with holes 23 'in a mounting plate 27 as well as holes 23' 'in the housing 18 of a spindle module 4.

In figure 1 the spindle module 4 with unwinding spool 5, spool bowl 6 and balloon thread 7 as well as the enveloping casing 18 are represented in figure 1 of the workstation 1 '. The casing 18 is connected via a mounting 27 (FIG. 4) with the hollow profile 21. The housing 18 has on the front side a front plate 18 ', a preferably transparent hinged cover part 18 "and a cover 18" (FIG. 5). The spool module 3 arranged above, which is shown in detail in FIG. 3, has yarn guide and transport members 8, a friction drive 10 as well as a yarn conductor 11. The winding spool 12 is housed on the coil plate 14 on a pivotable coil frame 13 which, for its part, is retained on a bearing 15 'in bearing panels 15 of the coil module 3.

In the coil box 16 of the coil module 3 a control unit 9 is arranged, which has control elements 9 '. A frame damper 19 is respectively articulated on the coil frame 12, which provides a uniform contact pressure and at the same time damping the oscillating movement during winding. The transport module 17 is provided for transporting the finished output reels after their replacement. This transport module 17 forms a transport section with a conveyor belt 31 specific to the transport module or a conveyor belt 33 comprising several double screw units 1 (figure 7). Whether a conveyor belt 31 specific to the twin screw or a conveyor belt 33 comprising several twin-screw units is used depends on the desired flexibility of the transport of the output reels 12. Whereas in individual conveyor sections with conveyor belts 31 according to Fig. 6 there is a higher flexibility, in a longer conveyor belt 33 the construction expense necessary for transport is reduced. However, in the latter case the possibilities for varying the limits between different conveying directions for the output coils 12 are fixed.

In the machine shown in figure 7 an evacuation station 34 is still represented with a receiving position, to which the finished output reels 12 are transported so that they can be transferred from there, for example, by means of an elevator to a conveyor suspended or to a loading platform.

As can be seen in Figures 6 and 7, the arrangement of double screw units 1 is limited on both sides by closure plates, which then correspond to corresponding common installations 32 or 34.

In the machines shown in FIGS. 6 and 7, a central control device 32 is represented, which contains, for example, a central power supply or also, if necessary, a control device, with which the units can be activated. control 9 of the jobs. Thus, for example, for all workstations 1 ', 1' 'or for groups of these workstations, corresponding specifications can be set in the central control facility 32.

Coil modules 3 are installed as a set in mounting walls 24 of bracket 2 and can be easily replaced. This refers not only to replacement in the event of a defect, but also to replacement by another bobbin module, with which bobbins of other dimensions can be replaced with another winding procedure or with a very different thread material .

The hinge-type supports 24 'allow, after loosening of upper screw connections not shown with module 3, the articulation of the coil module downwards to the area of the housing 18 of the spindle module 4, which can be considerably reduced the transport volume of the twin screw unit 1.

As can be recognized from Figures 5 and 7, a supply cable 29 is still present, on which, for example, corresponding supply lines are laid. In the case of a flexible configuration of this supply channel, oscillating movements are effectively prevented from being transmitted from one work station to another work station. Furthermore, the length of the respective supply channel 29 can be adapted to the flexible length of the machine. The supply lines starting from this supply channel are led, for example, through the hollow profile upwards and lead through a supply opening 28 to the coil module with the control unit 9. Not shown here, but it is obviously possible also within the framework of the invention, the arrangement of spacer pieces between the individual twin screw units 1. The dimensions of these spacer pieces depend, if necessary, on the dimension of the corresponding working elements of the spindles. In this way it is possible, in general, to increase the expansion of the working elements with a given construction, which is possible without more than through the support 2 arranged in the center according to the invention. This generally results in a considerable improvement in flexibility with regarding the configuration of a machine.

Claims (13)

1. Multi-position textile machine, comprising one or more double spindle units (1), wherein the double spindle unit (1) has a frame, which supports work and transport elements, which contains a transport facility of coils (31, 33), wherein the rear sides of the two working positions (1 ', 1' ') of the unit of double spindles (1), respectively presenting a coil installation (3), are directed towards each other, and the multi-position textile machine comprises legs (26), characterized in that the double spindle unit (1) has a support (2) arranged in the center, because the support (2) has a cross member (20) that extends from one to the other work station of the double spindle unit (1), which is supported by means of legs (26), which are adjustable legs ( 26) on the ground, because the support (2) also has a hollow profile (21) arranged in the center, which extends vertically from the cross member (20) and because the hollow profile (21) is configured at least to house a coil transport facility (31,33) as well as to secure a coil facility (3). 2. Multi-position textile machine according to claim 1, characterized in that the cross-member (20) has at least one hole, into which a suction device can be connected. Multi-position textile machine according to claim 1, characterized in that the reel installation (3) is configured as a reel module. Multi-position textile machine according to claim 1, characterized in that the housing (18) of a spindle module (4) is connected to the hollow profile (21) and that the housing (18) and the hollow profile ( 21) have air passage holes (23, 23 ', 23' ') aligned with each other. Multi-position textile machine according to one of the preceding claims, characterized in that the multi-position textile machine comprises several of the double spindle units (1) and each double spindle unit (1) has a control unit (9 ). 6. Multi-position textile machine according to claim 5, and at least dependent on claim 3, characterized in that the control unit (9) is integrated in the reel module (3). A multi-position textile machine according to claim 5 or 6, characterized in that the control unit (9) has a control unit (9 '). Multi-position textile machine according to claim 5, characterized in that the control unit (9) has an interface for communication with a central control unit (32). Multi-position textile machine according to claim 7 or 8, characterized in that the working elements of the respective twin spindle units (1) have separate drives and the twin spindle units (1) can be driven autonomously with the respective control installation (9). Multi-position textile machine according to claim 1, characterized in that the multi-position textile machine comprises several double spindle units (1), and the double spindle units (1) respectively have a transport module (17 ) separately operable, forming a transport section of the reel transport installation (31). 11. Multi-position textile machine according to claim 1, characterized in that several of the double screw units (1) are provided with a common coil transport installation (33), wherein the double screw units end with respect to The transport section formed in this way is provided with the necessary diverting facilities for an endless traction means (33). 12. Multi-position textile machine according to claim 1, characterized in that the multi-position textile machine comprises several of the double spindle units (1), and separate or continuous connecting elements (29), which bridge the units of Twin spindles (1) have elastic properties to suppress a transmission of oscillations. 13. Multi-position textile machine according to any one of claims 1 to 12, characterized in that the multi-position textile machine is a twisting or double-yarn spinning machine.